package com.demo.producer;

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;

import java.util.concurrent.TimeUnit;

/**
 * @Author wangfeng
 * @Description
 * @Date 2021/11/16
 **/
public class SyncProducer {
	public static void main(String[] args) throws Exception {
		// 实例化消息生产者Producer
		DefaultMQProducer producer = new DefaultMQProducer("wangfeng12");
		// 设置NameServer的地址
		producer.setNamesrvAddr("47.94.17.35:9876");
		// 启动Producer实例
		producer.start();
		for (int i = 0; i < 15; i++) {
			// 创建消息，并指定Topic，Tag和消息体
			Message msg = new Message("TopicF",
					"TagA",
					("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
			);
			// 发送消息到一个Broker
			SendResult sendResult = producer.send(msg);

			// 通过sendResult返回消息是否成功送达
			System.out.printf("%s%n", sendResult);
		}
		// 如果不再发送消息，关闭Producer实例。
		producer.shutdown();

		TimeUnit.SECONDS.sleep(1);
	}

}
